Journal ArticleDOI
Microfluidic memory and control devices.
TLDR
By exploiting the fluid's non-Newtonian rheological properties, this work was able to demonstrate both a flux stabilizer and a bistable flip-flop memory that could be used as components of control systems for integrated microfluidic devices.Abstract:
We demonstrate microscopic fluidic control and memory elements through the use of an aqueous viscoelastic polymer solution as a working fluid. By exploiting the fluid's non-Newtonian rheological properties, we were able to demonstrate both a flux stabilizer and a bistable flip-flop memory. These circuit elements are analogous to their solid-state electronic counterparts and could be used as components of control systems for integrated microfluidic devices. Such miniaturized fluidic circuits are insensitive to electromagnetic interference and may also find medical applications for implanted drug-delivery devices.read more
Citations
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Journal ArticleDOI
Microfluidics: Fluid physics at the nanoliter scale
Todd M. Squires,Stephen R. Quake +1 more
TL;DR: A review of the physics of small volumes (nanoliters) of fluids is presented, as parametrized by a series of dimensionless numbers expressing the relative importance of various physical phenomena as mentioned in this paper.
PatentDOI
Microfluidic large scale integration
TL;DR: The fluidic multiplexor as discussed by the authors is a combinatorial array of binary valve patterns that exponentially increases the processing power of a network by allowing complex fluid manipulations with a minimal number of inputs.
Journal ArticleDOI
Developing optofluidic technology through the fusion of microfluidics and optics
TL;DR: D devices in which optics and fluidics are used synergistically to synthesize novel functionalities are described, according to three broad categories of interactions: fluid–solid interfaces, purely fluidic interfaces and colloidal suspensions.
Journal ArticleDOI
An integrated design and fabrication strategy for entirely soft, autonomous robots
Michael Wehner,Michael Wehner,Ryan L. Truby,Ryan L. Truby,Daniel J. Fitzgerald,Daniel J. Fitzgerald,Bobak Mosadegh,Bobak Mosadegh,George M. Whitesides,George M. Whitesides,Jennifer A. Lewis,Jennifer A. Lewis,Robert J. Wood,Robert J. Wood +13 more
TL;DR: An untethered operation of a robot composed solely of soft materials that autonomously regulates fluid flow and, hence, catalytic decomposition of an on-board monopropellant fuel supply is reported.
References
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Journal ArticleDOI
Monolithic microfabricated valves and pumps by multilayer soft lithography
TL;DR: An extension to the soft lithography paradigm, multilayersoft lithography, with which devices consisting of multiple layers may be fabricated from soft materials is described, to build active microfluidic systems containing on-off valves, switching valves, and pumps entirely out of elastomer.
Journal ArticleDOI
Dynamic pattern formation in a vesicle-generating microfluidic device.
TL;DR: It is shown that a microfluidic device designed to produce reverse micelles can generate complex, ordered patterns as it is continuously operated far from thermodynamic equilibrium.
Journal ArticleDOI
Functional hydrogel structures for autonomous flow control inside microfluidic channels
David J. Beebe,Jeffrey S. Moore,Joseph M. Bauer,Qing Yu,Robin H. Liu,Chelladurai Devadoss,Byung Ho Jo +6 more
TL;DR: The fabrication of active hydrogel components inside microchannels via direct photopatterning of a liquid phase greatly simplifies system construction and assembly as the functional components are fabricated in situ, and the stimuli-responsive hydrogels components perform both sensing and actuation functions.
Journal ArticleDOI
Single Polymer Dynamics in an Elongational Flow
TL;DR: The stretching of individual polymers in a spatially homogeneous velocity gradient was observed through use of fluorescently labeled DNA molecules, and the probability distribution of molecular extension was determined as a function of time and strain rate.